and the u.s. has also said they are ready to offer defense support to the country of ukraine. right now the national security adviser jake sullivan has said that ukraine -- russia could attack ukraine at any moment, but ultimately, the white house still is hoping that there might be some way to achieve a de-escalation through diplomacy. but the white house has also been clear to say that they are clear-eyed about russia's military moves, that the maneuvering that they've seen, the positioning of troops around ukraine do hint that there is a distinct possibility russia may move forward with an invasion. one thing of utmost importance to the administration at this moment is ensuring the safety of american citizens. the u.s. has drawn down most of its embassy presence in ukraine, evacuating non-emergency personnel, and they've also encouraged americans to depart the country immediately, including a direct message from